Image processing apparatus for enhancing high frequency components
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United States of America Patent
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Apr 20, 2010
Grant Date -
Oct 12, 2006
app pub date -
Mar 29, 2006
filing date -
Mar 30, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An image processing apparatus receives an input image signal and performs an enhancement process on a high frequency component included in the input image signal based on a low frequency component of the input image signal. The apparatus extracts a low frequency component from the input image signal and combines a step variation component of the input image signal with the low frequency component to generate a combined wave component. The apparatus performs an enhancement process on the high frequency component obtained by removing the combined wave component from the input image signal.
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